Automatically userstamps create and update operations if the table has columns named created_by and/or updated_by. The Blamer gem attempts to mirror the simplicity of ActiveRecord's timestamp module.
User.current_user to return the current user object. Basic setup involves assigning to
User.current_user in a controller before filter:
class User < ActiveRecord::Base cattr_accessor :current_user end class ApplicationController < ActionController::Base before_filter :set_userstamp def set_userstamp User.current_user = User.find(session[:user_id]) end end
If you don't want to use
User.current_user you can override this behavior by writing your own
userstamp_object method in ActiveRecord::Base or any of your models. For example, to use
def userstamp_object Person.current end
If you don't like created_by/updated_by you can customize the column names:
# Globally in environment.rb ActiveRecord::Base.created_userstamp_column = :creator_id ActiveRecord::Base.updated_userstamp_column = :updator_id # In a model definition class Subscription self.created_userstamp_column = :creator_id self.updated_userstamp_column = :updater_id end
Automatic userstamping can be turned off globally by setting:
ActiveRecord::Base.record_userstamps = false
Blamer adds a
userstamps migration helper which will add the created_by and updated_by columns (or your custom column names) to your table:
create_table :widgets do |t| t.string :name t. t.userstamps end
If you need thread safety make sure that your implementation of
User.current_user (or your custom user object) is thread safe. Here's one way this can be accomplished:
class User < ActiveRecord::Base def self.current_user Thread.current[:current_user] end def self.current_user=(user) Thread.current[:current_user] = user end end
You must use the correct version of blamer for the version of Rails you are running:
Rails 4 and Rails 5
Add to your Gemfile
gem 'blamer', github: 'infused/blamer'
Add to your Gemfile
gem 'blamer', '~> 3.0.0'
gem 'blamer', :github => 'infused/blamer', :branch => '3_stable'
Add a line to your environment.rb
config.gem 'blamer', '~> 3.0.0'
Copyright (c) 2008-2018 Keith Morrison <email@example.com>
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